In which option is the degree of the polynomial (3)?
Answer and explanation
Correct answer: \(5x^3-2x+1\)
The degree of a polynomial is the greatest exponent of the variable in any of its terms. In \(5x^3-2x+1\), the highest exponent of \(x\) is \(3\), so its degree is \(3\). The polynomial \(4x^2+7\) has degree \(2\), so it is not correct. Exam tip: a constant term has exponent \(0\).
Frequently asked questions
What is the correct answer to this question?
\(5x^3-2x+1\)
Why is this the correct answer?
The degree of a polynomial is the greatest exponent of the variable in any of its terms. In \(5x^3-2x+1\), the highest exponent of \(x\) is \(3\), so its degree is \(3\). The polynomial \(4x^2+7\) has degree \(2\), so it is not correct. Exam tip: a constant term has exponent \(0\).
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Introduction to Polynomials. Topic: Degree of a Polynomial.
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